<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body{
				background-color: #666;
			}
			.map{
				width: 747px;
				height: 616px;
				background-image: url(img/map.png);
				margin: 0 auto;
				position: relative;
			}
			.city{
				width: 8px;
				height: 8px;
				background-color: #00f;
				border-radius: 50%;
				position: absolute;
				right: 190px;
				top: 228px;
			}
			.bw{
				width: 10px;
				height: 10px;
				border-radius: 50%;
				box-shadow: 0 0 10px blue;
				position: absolute;
				left: 50%;
				top: 50%;
				transform: translate(-50%,-50%);
				animation: bw 1s linear infinite;
			}
			@keyframes bw{
				0%{
					
				}
				60%{
					width: 30px;
					height: 30px;
					opacity: 1;
				}
				100%{
					width: 50px;
					height: 50px;
					opacity: 0;
				}
			}
			.bw2{
				animation-delay: 0.4s;
			}
			.bw3{
				animation-delay: 0.8s;
			}
		</style>
	</head>
	<body>
		<div class="map">
			<div class="city">
				<div class="bw"></div>
				<div class="bw bw2"></div>
				<div class="bw bw3"></div>
			</div>
		</div>
	</body>
</html>
